baud-rate

来源： https://stackoverflow.com/questions/63794664/error-running-01-46-response-unabletoconnect

问题 I want to pass binary data from my PC to my micro-controller through the real serial port in my computer. At this time, I'm thinking of using INB and OUTB functions so I don't have to put up with linux tty character overrides. Question is, how do I configure the baud rate of the serial port, if I use its address with the INB and OUTB functions? For example, if I want to write to COM1 (0x3F8), how will I be able to determine the baud rate data is being written at? Does stty still have some

问题 I am working on native android application. In this application I am connecting hardware devices using usb cable, for this connection I used below library: https://github.com/felHR85/UsbSerial I have 3 different hardware devices and each device has different baudrate. I have one scan button in app. If user click on it then I need to check which device is connected and print its information. To implement this, I create 3 methods. Each method have same code with different baudrate. When user

问题 I am working on native android application. In this application I am connecting hardware devices using usb cable, for this connection I used below library: https://github.com/felHR85/UsbSerial I have 3 different hardware devices and each device has different baudrate. I have one scan button in app. If user click on it then I need to check which device is connected and print its information. To implement this, I create 3 methods. Each method have same code with different baudrate. When user

问题 Issues with Android-2-Arduino communication made it clear to me I have no clue which parts of the chain are (directly) affected by the baud rate. Could you please confirm/correct following assumptions? The 'baud rate' value is not related to anything on the Android side. Therefore it is not a bug when an Android USB/Serial library only sends the baud rate value (9600, 125000, etc.) to the other side via controlTransfer, not storing it anywhere, not setting it somehow to the Android device

问题 I am trying to use PHP to send text to an LED sign so I can send support ticket numbers to it. The sign itself is a piece of work; it came from eBay and is poorly made with almost no documentation. After fiddling with it for a while, I was able to figure out the way it expected stuff to be sent to it and that the baud rate is 28800. I already know how to communicate with stuff like this using PHP, but I don't know how to change the baud rate to something nonstandard. I've tried other baud

问题 I am trying to talk with hardware device through virtual COM port. Host computer is PC Windows OS PC. Device is working with 921600 baud rate. This code works: DCB dcb; ... dcb.BaudRate = CBR_115200; SetCommState(hPort, &dcb); Once I change baud rate: dcb.BaudRate = 921600; SetCommState fails with last error 0x57 (parameter is incorrect). Does this mean that Windows API prevents any baud rate except predefined values? Or maybe, virtual COM port may be configured to allow this baud rate?

问题 Is there a way to find out all the available baud rates that a particular system supports via C#? This is available through Device Manager-->Ports but I want to list these programmatically. 回答1: I have found a couple of ways to do this. The following two documents were a starting point http://support.microsoft.com/default.aspx/kb/99026 http://msdn.microsoft.com/en-us/library/aa363189(VS.85).aspx The clue is in the following paragraph from the first document The simplest way to determine what

问题 I am trying the sample for the GPS driver with a raspberry pi 3 and the Ultimate GPS V3 breakout board. Here is the full source code: https://github.com/androidthings/drivers-samples/tree/master/gps The GPS board is connected following this schematics: When launching the sample app, I get the following error: com.example.androidthings.driversamples E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.androidthings.driversamples, PID: 1299 java.nio.BufferOverflowException at java.nio

问题 I am testing the sending and receiving programs with the code as The main() function is below: #include "lib.h" int fd; int initport(int fd) { struct termios options; // Get the current options for the port... tcgetattr(fd, &options); // Set the baud rates to 19200... cfsetispeed(&options, B9600); cfsetospeed(&options, B9600); // Enable the receiver and set local mode... options.c_cflag |= (CLOCAL | CREAD); options.c_cflag &= ~PARENB; options.c_cflag &= ~CSTOPB; options.c_cflag &= ~CSIZE;